#!/bin/sh
# PCP QA Test No. 1401
# Exercise REST API chunked encoding with persistent HTTP
# connections, end-of-JSON-response EOL strings and other
# small API buglets that have cropped up over time.
#
# Copyright (c) 2019 Red Hat.
#

seq=`basename $0`
echo "QA output created by $seq"

# get standard environment, filters and checks
. ./common.product
. ./common.filter
. ./common.check

_check_series

_cleanup()
{
    cd $here
    if $pmproxy_was_running
    then
	echo "Restart pmproxy ..." >>$here/$seq.full
	_service pmproxy restart >>$here/$seq.full 2>&1
	_wait_for_pmproxy
    else
	echo "Stopping pmproxy ..." >>$here/$seq.full
	_service pmproxy stop >>$here/$seq.full 2>&1
    fi
    $sudo rm -rf $tmp $tmp.*
}

status=1	# failure is the default!
$sudo rm -rf $tmp $tmp.* $seq.full
trap "_cleanup; exit \$status" 0 1 2 3 15

pmproxy_was_running=false
[ -f $PCP_RUN_DIR/pmproxy.pid ] && pmproxy_was_running=true
echo "pmproxy_was_running=$pmproxy_was_running" >>$here/$seq.full

_filter_context()
{
    sed \
	-e 's/"context":[1-9][0-9]*,.*/"context":CTX}/g' \
    #end
}

_filter_fetch()
{
    sed \
	-e 's/"context":[1-9][0-9]*/"context":CTX/g' \
	-e 's/"timestamp":[1-9][0-9]*\.[0-9][0-9]*/"timestamp":TIMESTAMP/g' \
    #end
}

# real QA test starts here
_service pmproxy stop >/dev/null
_service pmproxy start >>$here/$seq.full 2>&1
_wait_for_pmproxy

# curl maintains a connection when given multiple URLs
echo "Verify no chunk-encoded lengths in output" | tee -a $seq.full
url1='http://localhost:44322/metrics'
curl -s "$url1" "$url1" | tee -a $seq.full > $tmp.out

# remove expected, good comment lines and metric lines
cat $tmp.out \
    | grep -v '^#' \
    | grep -v '} '
echo "Silence is golden"

# curl maintains a connection when given multiple URLs
echo "Verify no unexpected final EOL markers in output" | tee -a $seq.full
url2='http://localhost:44322/pmapi/fetch?names=hinv.ncpu,disk.dev.read'
curl -s "$url2" | tee -a $seq.full > $tmp.out
tail -1 $tmp.out | sed -e 's/{.*}/JSON/g'

# change instance domain for a single connection
echo "Verify changes in dynamic instance domain" | tee -a $seq.full
fetch='http://localhost:44322/pmapi/fetch?name=sample.many.int'
store1='http://localhost:44322/pmapi/store?name=sample.many.count&value=5'
store2='http://localhost:44322/pmapi/store?name=sample.many.count&value=3'
store3='http://localhost:44322/pmapi/store?name=sample.many.count&value=7'
curl -s "$store1" "$fetch" "$store2" "$fetch" "$store3" "$fetch" | _filter_fetch

# check parsing of URLs with strange parameters
echo "Verify handling of unusual URL contents (empty)" | tee -a $seq.full
curl -s 'http://localhost:44322/pmapi/context?' | _filter_context
echo "Verify handling of unusual URL contents (empty with ampersand)" | tee -a $seq.full
curl -s 'http://localhost:44322/pmapi/context?&' | _filter_context
echo "Verify handling of unusual URL contents (name without equals)" | tee -a $seq.full
curl -s 'http://localhost:44322/pmapi/context?test' | _filter_context
echo "Verify handling of unusual URL contents (param then name without equals)" | tee -a $seq.full
curl -s 'http://localhost:44322/pmapi/context?test1=1&test2' | _filter_context
echo "Verify handling of unusual URL contents (repeating ampersands)" | tee -a $seq.full
curl -s 'http://localhost:44322/pmapi/context?test1=1&&test2=2' | _filter_context

# success, all done
status=0
exit
